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@ -137,15 +137,11 @@ namespace MWGui
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public:
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CopyFramebufferToTextureCallback(osg::Texture2D* texture)
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: mTexture(texture)
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, oneshot(true)
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{
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}
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void operator () (osg::RenderInfo& renderInfo) const override
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{
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if (!oneshot)
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return;
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oneshot = false;
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int w = renderInfo.getCurrentCamera()->getViewport()->width();
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int h = renderInfo.getCurrentCamera()->getViewport()->height();
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mTexture->copyTexImage2D(*renderInfo.getState(), 0, 0, w, h);
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@ -153,7 +149,6 @@ namespace MWGui
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private:
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osg::ref_ptr<osg::Texture2D> mTexture;
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mutable bool oneshot;
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};
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class DontComputeBoundCallback : public osg::Node::ComputeBoundingSphereCallback
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@ -322,9 +317,12 @@ namespace MWGui
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mGuiTexture.reset(new osgMyGUI::OSGTexture(mTexture));
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}
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// Notice that the next time this is called, the current CopyFramebufferToTextureCallback will be deleted
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// so there's no memory leak as at most one object of type CopyFramebufferToTextureCallback is allocated at a time.
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mViewer->getCamera()->setInitialDrawCallback(new CopyFramebufferToTextureCallback(mTexture));
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if (!mCopyFramebufferToTextureCallback)
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{
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mCopyFramebufferToTextureCallback = new CopyFramebufferToTextureCallback(mTexture);
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}
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mViewer->getCamera()->addInitialDrawCallback(mCopyFramebufferToTextureCallback);
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mBackgroundImage->setBackgroundImage("");
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mBackgroundImage->setVisible(false);
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@ -367,6 +365,12 @@ namespace MWGui
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mViewer->renderingTraversals();
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mViewer->advance(mViewer->getFrameStamp()->getSimulationTime());
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if (mCopyFramebufferToTextureCallback)
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{
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mViewer->getCamera()->removeInitialDrawCallback(mCopyFramebufferToTextureCallback);
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mCopyFramebufferToTextureCallback = nullptr;
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}
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mLastRenderTime = mTimer.time_m();
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}
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